Winding key



Dec. 15 1925. 1,565,754.

W. G. ORTH WINDING KEY File May 7, 1923 auen/170% Patented Der. 15, 11925'.

"UNITED, STATES PATENT OFFICE.

WILLIAM e. on'rH, 0E DAYTON, oHIo, AssIGNoE lro OHMEEEAEE REGISTER 00M- IANY, or DAYTON, oHIo, A coEroRArIoN or NEW YORK.

vvINDINof KEY.'

- Application led M ay 7,

To all whoml t may concern.'

Be it known that I, WILLIAM G. ORTH, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Winding Keys,

' The object of this invention is to provide a winding device by means of which it is impossible t0 apply IIore than a certain amount of force to the element to be turned, regardless of the `pressure. which is exerted on the winding handle.

-A further yobject of -the invention is to provide a winding device comprising a member adapted to Vbe turned by hand, and a second member adapted to engage` the m elementy to be turned, and means -for per# of a slip clutch. y

In the drawings Fig. 1 represents a` mitting a relative rotation .between these members under certain conditions, while re taining them against relative longitudinal displacement. r v

' A further object of the invention 'is to provide a windinghdevice comprising twov distinct parts which are connected by means longitudinal section of a preferred form of my invention. Fig. 2 represents a side elevation of a slightly modified form.

vThe key or windin device comprises two 'main parts; a manua ly operable member 5 and a part 6 adapted to engage the winding .stud of a clock or other deviceH which is to P be turned. .'.Ihe handle part 5 has rigid therewith, a shank 7 which is bored to receivea stud 8, which stud extends through a similar bore inthe spindle 6. The spindle 6 in this form of the invention' is recessed to receive the winding'stud or other element Ato be turned, and the stud 8 comprises a head v9 which rests a. inst a shoulder formed at the junction o the recess' and the 1923. Sperial'No. 637,364.

bore containing ithe stud 8. The stud 8 is held against longitudinal movement and also against rotation with respect to the shank 7 by means of a dowel pin 10 extending therethrough. It will be seen that the headed stud 8 and the dowel pin 10 form a connecting means between the `two parts of the key which permits of their relative rotation. l A

For the purpose of transmitting rotary movement from the handle or finger piece 5 to the spindle' 6, the f-ollowing device is provided.

Rigid with. the spindle 6 'is a clutch element 11 which is engaged by'co-operating clutch element 12 loosely mounted on the shank 7 The ends of the dowel pin 10 are received in slots 13 in an elongated hub integrali-Vith the clutch element 12. Clutch element 12 is normally held in contact with the clutch elementL 11 by lmeans of a coil spring 14 wound about the hub and bearing against a fixed abutment 15. f If, however, the resistance to rotation of the spindle v6 be,

comes excessive, the spring 14 willbecoinpressed and the V shaped teeth of clutch-elesoV ments 11 and 12 will slide past eachother.

used in the clocks of printing taximeters, a

, stout spring 14 will be used. If a lighter clock spring or line valve is to be turned, the spring 14 will be selected accordingly, the selection in any case being such that the proper amount of force may be transmitted to thefelement to .be turned, but when the greater force will cause the clutch Inthe embodimentdof the invention illustrated in. Fig. 1 the finger piece 5 is re-y laced bya crank 16, otherwise the device lsfentirely similar to that shown yin Fig. 2. I am aware that in automatic `clock winding devices, slip clutches have been used, but as I am the first to incorporate any device forthis urpose into a unitar structure adapted or manual actuation, I limit myself to the specific form of the invention hereink described and illustrated in 5 offers an Increased resistance, the apphca- 9 do not the drawings,but intend that the invention 11o' shall be construed as covering all e uivalent devices falling Within the scope o the appended claims.

I claim Y 1. A winding key comprising a manual member, a second member adapted to engage an element to be turned thereby, said second member being recessed longitudinally and\compris`ing a longitudinal bore in alinement with but or/smaller diameter than said recess, a similarv bore in said manual member, a headed stud passing through said y 'passing transversely through said stud and said manual member, a clutch element fixed to said second member, a second clutch element loose on said manual member but retained against rotation relative thereto by said dowel pin.

3. A winding key comprising a manual member', a second member adapted to enlgage an elementto be turned thereby, said second member being recessed longitudinally and comprising a` longitudinal bore in alinement with but of smaller diameter than said recess, a similar bore in said manual member, aheaded stud passing through said bores the head resting in said recess,fa

dowel pin passing transversely throughv said stud and said manual member, a clutch element fixed to said second member, a second clutch element loose on said manual member, said second clutch element comprising an elongated hub, elongated slots in said hub adapted to receive the ends of said dowel pin, thereby retaining said second clutch element against rotation, and a spring normally pressing said clutch elements into engagement but permitting displacement of vsaid second clutch element when the resistance to rotation of said second member exceeds a predetermined amount.

4. A Winding key comprising a manual member and a member adapted to engage an element to be turned thereby, means com- `prisng a headed stud extending through alined bores in said members for retaining them against relative longitudinal displacement, and means comprising cooperating clutch elements for normally retaining said members against relative rotation.

5. A Winding key comprising a manual memberand a member adapted to engage an element to be turned thereby, means comprising a headed stud extending through alined bores in said members for retaining them against relative longitudinal displacement, means comprising a fixed clutch element and a slidable clutch element for normallyl retaining said members against relative rotation, and a single doWel pin for retainingg said stud in one of said members, and retaining said slidable clutch element against rotation.

G. A Winding key comprising a manual member, a member adapted to engage an element to be turned thereby, means for normally retaining said members against relative rotation, other means for retaining said members against relative longitudinal displacement, said second means comprising alined bores in said members and a headed stud extending through said bores and held to one of said members by a dowel pin.

In testimony whereof I affix my signature.'l

WILLIAM G. ORTH. 

